Abstract
Assistive instruments such as slopes and textured paving blocks are installed for helping elderly, visually and/or physically impaired people, who have any inconvenience to move outside. Though these precipitous situations of accessibility progress affect their migration pathway for their destination, up-to-date accessibility information is difficult to gain quickly because of local information disclosure. It is necessary to develop a comprehensive system which appropriately acquires and arranges scattered accessibility information and then presents the information intuitively. Thus, our final goal is to develop a social platform which can obtain and present the information depending on users' conditions and situations including users' disorders and places, and can share the information provided by users. Particularly in this paper, we analyzed the characteristics of shared information obtained by assessment and crowdsourcing for improving quality and quantity of accessibility information. Results indicated that different tendency of character counts among accessibility conditions was observed in the assessment and the crowdsourcing conditions.
